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Q: Car won't run over certain mileage

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My car won't run over 30 mph.

If there are any Check Engine lights or other dash lights on, the car might be stuck in limp home mode. This is a computer failsafe mode that disables certain features for passenger safety because it has detected a major fault. I would run a Check Engine Light inspection and have this car scanned for codes by a certified mobile mechanic.

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